POSTER Session 2

VALIDATION OF SATELLITE-BASED BIOGEOCHEMICAL PRODUCTS ALONG EUROPEAN COASTAL WATERS THROUGH THE UTILIZATION OF THE HYPERBOOST (TARA EUROPA) BIO-OPTICAL DATASET

The role of in-situ bio-optical datasets in assessing the uncertainties of satellite ocean color measurements and derived products cannot be overstated. This is particularly crucial in coastal waters, where land adjacency, bottom reflectance effects, and optical water complexity can significantly affect the satellite’s signal. Therefore, collecting relevant in-situ data is of utmost importance for existing and upcoming hyperspectral missions and updating our knowledge of optical properties. The Bio-Optical Observations Sailing on Tara (HyperBOOST) project, funded by the ESA and part of the Tara Europa expedition, is set to gather bio-optical and biogeochemical data across European coastal waters from April 2023 to August 2024, offering a unique research opportunity. The data collected include inline inherent optical properties, hyperspectral above-water radiometry, as well as laboratory characterization of the particulate and dissolved materials with samples collected over 200 stations. It expands the pioneering work of Babin et al. in both spatial coverage and parameters measured. In this work, we assessed the performance of several satellite products in coastal systems, including the standard products by the space agencies and the Copernicus Marine Service regional datasets. The matchup analysis of satellites and in-situ biogeochemical products was based on quality-controlled data collected during the HyperBOOST project. With its comprehensive temporal and spatial coverage (spanning Atlantic, Baltic, and Mediterranean coasts), the dataset is useful for both present and future satellite ocean color missions.

Christian Marchese, Consiglio Nazionale delle Ricerche, Istituto di Scienze Marine (CNR ISMAR), Italy, https://orcid.org/0000-0002-2414-9251

Luis González-Vilas, Consiglio Nazionale delle Ricerche, Istituto di Scienze Marine (CNR ISMAR), Italy

Margherita Costanzo, Consiglio Nazionale delle Ricerche, Istituto di Scienze Marine (CNR ISMAR), Italy

Tom Jordan, Plymouth Marine Laboratory (PML), United Kingdom

Stefan Simis, Plymouth Marine Laboratory (PML), United Kingdom

Vittorio E. Brando, Consiglio Nazionale delle Ricerche, Istituto di Scienze Marine (CNR ISMAR), Italy

Emmanuel Boss, University of Maine, USA

David Doxaran, Laboratoire d’Océanographie de Villefranche-sur-Mer (LOV), France

Chiara Santinelli, Consiglio Nazionale delle Ricerche, Institute of Biophysics (CNR IBF), Italy

Victor Martinez-Vicente, Plymouth Marine Laboratory (PML), United Kingdom

Federico Falcini, Consiglio Nazionale delle Ricerche, Istituto di Scienze Marine (CNR ISMAR), Italy

Javier A. Concha, ESA European Space Research Institute (ESRIN), Italy

Marie Helene Rio, ESA European Space Research Institute(ESRIN), Italy

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